Miller
two-stage air compressor

ABSTRACT

A TWO-STAGE AIR COMPRESSOR HAVING A STEPPED DIAMETER RECIPROCATING PISTON. A FIRST COMPRESSION CHAMBER IS SEPLIDE-PROPYLENEDIAMINE, SILVER HALIDE - TETRAMETHYLENEDIAMINE, SILVER HALIDE-PENTAMETHYLENEDIAMINE, SILVER HALIDEHEXAMETHYLENEDIAMINE, ETC.

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16. 1969, 869 0.6. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification. including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may he purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Oflice makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED FEBRUARY 2, 1971 883 O.G..l0

T883,011 TWO-STAGE AIR COMPRESSOR Gerald R. Miller, Northville, Mich., assignor to Ford Motor Company, Deal-born, Mich., a corporation of Delaware Continuation of application Ser. No. 769,582, Oct. 22, 1968. This application Apr. 27, 1970, Ser. No. 29,756 Int. Cl. F04b 25/00 U.S. Cl. 417-259 1 Sheet Drawing. 7 Pages Specification A two-stage air compressor having a stepped diameter reciprocating piston. A first compression chamber is separated from a second compression chamber by a passageway and check valve formed within the stepped diameter piston Feb. 2, 1971 G'. R. MILLER TWO-STAGE AIR COMPRESSOR Original Filed Oct. 22, 1968 

